User`s manual

Appendix A AT Commands
59
+PMHT=6 Grant modem on hold request with a 2 min. time-out.
+PMHT=7 Grant modem on hold request with a 3 min. time-out.
+PMHT=8 Grant modem on hold request with a 4 min. time-out.
+PMHT=9 Grant modem on hold request with a 6 min. time-out.
+PMHT=10 Grant modem on hold request with a 8 min. time-out.
+PMHT=11 Grant modem on hold request with a 12 min. time-out.
+PMHT=12 Grant modem on hold request with a 16 min. time-out.
+PMHT=13 Grant modem on hold request with an indefinite time-out.
+PQC=<value>—V.92 Phase 1 and Phase 2 Control
Use this command to configure the V.92 short training sequence. This
command selects which short phases are used during initiation of a
connection. Once the modem is configured, use the +PSS command to
enable or disable the short training sequence.
+PQC=0 Enable short phase 1 and short phase 2 (default).
+PQC=1 Enable short phase 1 only.
+PQC=2 Enable short phase 2 only.
+PQC=3 Disable short phase 1 and short phase 2.
+PSS=<value>—Use Short Sequence
Use this command to enable or disable the V.92 short training sequence.
+PSS=0 Use training sequence set in by the +PQC command.
+PSS=2 Use long training sequence.
+VCID=<value>—Caller ID
Use this command to enable or disable caller ID.
+VCID=0 Disable caller ID.
+VCID=1 Enable caller ID with formatted presentation.
+VCID=2 Enable caller ID with out formatting.
+FTH=<mod>—Transmit HDLC Data with <mod> Carrier
The +FTH=<mod> command causes the modem to transmit data framed in
the HDLC protocol.
+FTH=3 V.21 channel 2. 300 bits/s.
+FTH=24 V.27ter. 2400 bits/s.
+FTH=48 V.27ter. 4800 bits/s.
+FTH=72 V.29. 7200 bits/s.